Perry, W. (2007). Sound medicine: The complete guide to healing with the human voice. New Page Books.
Citazione stile Chigago Style (17a edizione)Perry, Wayne. Sound Medicine: The Complete Guide to Healing with the Human Voice. New Jersey: New Page Books, 2007.
Citatione MLA (9a ed.)Perry, Wayne. Sound Medicine: The Complete Guide to Healing with the Human Voice. New Page Books, 2007.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.